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JAMES F. ORANSTON, JEREMIAH H. BANKS, AND JOHN M. INGERSOLL, 0F SPRINGFIELD, MASSACHUSETTS.

Letters Patent No. 101,828, dated April12, 1870.

IMPROVEMENT IN THE MANUFACTURE OF ARTIFICIAL FUEL The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

Be it known that we, JAMES F. Onnrsrox, J ERE- MIAH H. BANKS, and Joan M. INGERSOLL, all of Springfield, in the county of Hampden and State of Massachusetts, have invented a new and useful Improvement in Artificial Fuel; and we do herebydeclare that the following is a full, clear, and exact description thereof.

Our invention relates to that kind of fuel which is produced by the admixture of resinous substances with the dust or screenings of bituminous and anthracite coal, and it consists of the following ingredients mixed together, viz:

Four parts of anthracite and bituminous coal, about equal quantities of each; one part of sawdust, or peat, or both, mixed in about equal quantities; one part of resin and flour, about equal quantities of each, the whole forming a mixture of about six parts.

\Ve consider the following method of mixing these ingredients as the one producing the best and most satisfactory results.

The resin is first melted in a large revolving reservoir or vessel, having anopening therein which may be closed tightly. v The other ingredients are thoroughly mixed in any suitable vessel, and it would be better to have heat applied to said vessel, 'so that all the ingredients may have an approximate degree of heat when they are finally mixed together. i

We prefer to use sour flour, as it is much cheaper than that which is suitable for cooking purposes, and we use it to hold the mass together and give it tenacity when dry. The resin also serves to give the mass solidity and tenacity when thoroughly mixed, and furnishes the inflammable quality which causes the mass to take fire readily from a blaze:

\Ve use sawdust, or peat, or both, as may be most convenient, as both are of a similar nature, when the peat is broken fine, and either or both answer the same purpose in the mass that hair does in plaster, and they also serve as an absorbent for the oils, so that the oils from the resin, and that resulting from the chemical action in the union of the anthracite coal with the bituminous coal and resin, may thoroughly impregnate the whole mass and be absorbed therein.

After all the ingredients, except the resin, are

thoroughly mixed, they are put into a vessel with the resin, and the whole thoroughly mixed together, and it is then ready tobe taken out and pressed in molds to any desired degree.

It may be pressed in the ordinary brick-pressing It is not essential to be very exact in the admixture of the several ingredients, as an approximate approach to the proportions is quite sufficient.

We are aware that artificial fuel has heretofore been made and used, as shown in Letters Patent granted to R. Fish, March 27, 1866, numbered 53,431, and others, and we do not claim the same or any part of the same.

But having described our invention, What we do claim as new, and desire to secure by Letters Patent, is+

The composition and treatment of the ingredients,

or their equivalents, substantially as herein described, forming an artificial fuel.

JAMES F. CRANSTON. JEREMIAH H. BANKS. JOHN M. IN GERSOLL.

\Vitnesses T. A. Gnarls, O. E. BUoKnAND. 

